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Anticosti - southeastern half

Warnings

Forecast

Marine Forecast

Issued 03:30 PM AST 05 December 2025

Tonight and Saturday.

Storm warning in effect.

Wind northwest 55 knots diminishing to northwest 40 early this evening and to northwest 30 after midnight. Wind diminishing to northwest 15 to 20 early Saturday morning and to light early Saturday afternoon.

Flurries ending Saturday morning. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray ending Saturday morning.

Temperatures near minus 6.

Waves

Issued 05:00 PM AST 05 December 2025
Tonight and Saturday. Seas 4 to 6 metres subsiding to 2 to 3 late overnight and to 1 to 2 Saturday morning. Seas subsiding to 1 or less early Saturday afternoon.

Extended Forecast

Issued 03:30 PM AST 05 December 2025
Sunday Wind south 20 knots increasing to northwest 30 in the afternoon.
Monday Wind northwest 20 knots increasing to northwest 30.
Tuesday Wind west 25 to 30 knots.

Ice Forecast

Issued 10:00 AM EST 5 December 2025 Today Tonight and Saturday Open water. 

[ Canadian Ice Service ]

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Map of Atlantic - Maritimes marine weather areas Summerside Stephenville Airport North Cape Burgeo Pointe-des-Monts Port aux Basques Sagona Island St. Lawrence Tracadie Winterland Branch Hill Wreckhouse Halifax Harbour - 44258 LaHave Bank - 44150 Sept-Îles Airport Banquereau - 44139 Longue-Pointe-de-Mingan Île Rouge Île aux Perroquets Havre-Saint-Pierre Airport East Scotia Slope - 44137 Baie-Comeau Airport Mont-Joli Airport Rivière-la-Madeleine Saint John Airport Gaspé Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Heath Point Miscou Island Kouchibouguac Îles de la Madeleine Airport Kouchibouguac La Pocatière Grand Manan St. Stephen Fundy Park (Alma) New Carlisle Miramichi Pointe-au-Père Charlo Port Menier Bathurst Airport Île Bicquette Bas Caraquet Cap-Chat East Chedabucto Bay – 44488 West Chedabucto Bay – 44489 Lunenburg Charlottetown Airport Yarmouth Airport Pointe-Noire Western Head J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Nappan AAFC McNabs Island East Point Kentville AAFC Ingonish Beach Hart Island CFB Greenwood Grand Étang Eskasoni (First Nations) Debert Caribou Point Brier Island Cap-d'Espoir Beaver Island Baccaro Point
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EST 5 December 2025 Today Tonight and Saturday

Ice Edge

First ice edge estimated from New Brunswick near 4705N 6450W to
4758N 6416W to Gaspe Peninsula near 4830N 6413W. Sea ice east of the
ice edge.

Second ice edge estimated from Gaspe Peninsula near 4856N 6712W to
4956N 6635W to 4958N 6014W to Quebec near 5125N 5737W. Sea ice north
of the ice edge.

Ice Coverage

Open water.

 

Iceberg Bulletin

Issued 1:30 PM EST 5 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 6 Dec estimated from Newfoundland near
4830N 5310W to 4900N 4815W to 5000N 4700W to 5100N 4730W to 5945N
5730W to 6120N 5340W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Storm warning in effect

Anticosti - southeastern half

Issued 3:30 PM AST 05 December 2025

'Storm' force winds of 48 to 63 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Freezing spray warning in effect

Anticosti - southeastern half

Issued 3:30 PM AST 05 December 2025

Moderate or severe freezing spray is occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM AST 5 December 2025 Tonight and Saturday At 3:30 p.m. AST today departing low 973 mb located northeast
of Newfoundland.

At 3:30 p.m. AST today ridge located over the Gulf of Maine.
By 8:00 p.m. AST Saturday ridge located over the eastern Marine
District.

Marine Weather Statement

Issued 3:11 PM AST 5 December 2025 An intense low pressure northeast of Newfoundland will slowly track
eastward and away from the region while a ridge of high pressure over
the Gulf of Maine will move to lie over the eastern marine district
by Saturday evening. Gale to storm force northwesterlies are expected
between these two features.

Marine interests are advised that storm warnings are in effect for
Banquereau, Cabot Strait, Gulf-Magdalen - northeastern half, and
Anticosti - southeastern half. Gale warnings are in effect for
eastern shore - eastern half, Sable - eastern half, East Scotian
Slope - eastern half, Fourchu, Laurentian Fan, Northumberland Strait
- eastern half, Gulf - Magdalen - southwestern half, Chaleur - Miscou
- eastern half, and Anticosti - northwestern half.

Marine interests are also advised that freezing spray warnings are in
effect for Cabot Strait and all Gulf of St Lawrence waters.

Atlantic - Maritimes Area

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Marine Weather for Canada

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